Gather information about prokaryotic and eukaryotic cells and also the main parts and organelles of a cell.

Explains what archaebacteria and eubacteria are and presents a chart showing how they differ in structure and characteristics.

Comprehensive description and graphic of plasma membrane of prokaryotic and eukaryotic cells.

General information on the cyanobacteria, the blue-green algae and the features that make them different from prokaryotic bacteria. Also included are pages that point to more specific info, like life history and fossil records.

Journey into the past while reading this comprehensive overview of the Proterozoic Eon that covers topics such as the Prokaryotic life, Eukaryotes, glaciation, fauna evidence, and multicellular life forms.

[Free Registration/Login may be required to access all resource tools.] Take a close look at the endosymbiotic theory scientists have developed to explain the evolution of eukaryotes. Understand that chloroplast and mitochondria used to...

A complete, interactive course where students analyze the nature of the relationships between structures and functions in living cells.

Explanation of when the cell was discovered and how ideas have evolved into modern cell theory. Discover the cell structures and their functions.

[Free Registration/Login may be required to access all resource tools.] Online activity summarizes the cell theory, describes four parts all cells have in common, and the importance of the work of Robert Hooke and Anton van Leeuwenhoek.

In this amazingly comprehensive tutorial you will learn about the geological and environmental changes that occurred during the geologic time scale.

This is a tutorial slideshow showing the internal structure of an animal eukaryotic cell. Each slide has excellent labeled drawings accompanied by descriptive text explaining the function of each part.

In this learning module, students will begin to undestand the how kingdoms are classified.

This 11-page Biology course handout gives a detailed explanation of cell structure, supplemented by many illustrations.

Think you can tell a yam from a yak? Examine these still images of typical plant and animal cells from Biology by Kenneth R. Miller and Joseph Levine. What similarities and differences can you find?

[Free Registration/Login may be required to access all resource tools.] Covers the structure and function of the nucleus. Students will learn about the structures associated with the nucleus like the nuclear envelop, the nucleolus,...

An interactive module where students take a closer look at cells and relate their structure to function. They also discover how cell organelles work in systems to maintain important biological processes and how cells communicate.

This article illustrates the properties of cell division in prokaryotes and eukaryotes.

[Free Registration/Login may be required to access all resource tools.] Discusses how protists evolved from prokaryotic cells.

[Free Registration/Login may be required to access all resource tools.] For life to evolve from simple single-celled organisms to many millions of species of prokaryotic species to simple eukaryotic species to all the protists, fungi,...

[Free Registration/Login may be required to access all resource tools.] All organelles are found in eukaryotic cells, while most are not found in prokaryotic cells. Learn more about organelles in this learning module produced by CK-12.

Read this passage and study the graphics to answer the five-question quiz concerning structure, growth, physiology, and genetics of prokaryotes and viruses.

This study resource from Khan Academy provides practice questions for the MCAT. Questions related to the structure, growth, physiology and genetics of prokaryotes and viruses.

An explanation of the differences between bacteria and viruses. Further details are given showing that not all bacteria are bad.

While all cells have a great deal in common, there is no end to the variation among them. These images provide a sense of the wondrous diversity found in the world of cells.